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Table 2 Baseline sample characteristics of follow-up responders and non-responders

From: Effort-reward imbalance and work ability: cross-sectional and longitudinal findings from the Second German Sociomedical Panel of Employees

  Responders Non-responders  
  n = 873 n = 628 p
WAI, mean (SD) 38.7 (7.0) 37.2 (7.8) < 0.001
WAI    
Good or excellent, % 68.7 60.4 0.001
Poor or moderate, % 31.3 39.6  
Gender: female, % 33.6 34.1 0.835
Age, mean (SD) 51.0 (4.0) 51.2 (4.3) 0.306
Low educational level, % 33.2 37.1 0.119
White-collar worker, % 97.8 96.8 0.226
Exercise: at least two hours per week, % 54.5 51.8 0.288
BMI ≥ 25, % 57.2 60.4 0.216
Smoking, % 19.6 23.9 0.045
Health-related behaviour (0–3), mean (SD) 1.7 (0.9) 1.6 (0.9) 0.301
Physical demands (0–12), mean (SD) 1.1 (1.7) 1.5 (2.2) < 0.001
Psychological job demands (0–4), mean (SD) 1.5 (0.9) 1.5 (1.0) 0.528
Job control (0–4), mean (SD) 3.2 (0.7) 3.1 (0.7) 0.091
Effort (5–25), mean (SD) 14.8 (4.4) 15.1 (4.6) 0.229
Reward (11–55), mean (SD) 44.3 (8.7) 43.3 (8.8) 0.026
ER ratio, mean (SD) 0.8 (0.4) 0.8 (0.4) 0.083
ERI: ER ratio > 1, % 23.7 29.0 0.022
  1. n = 1501; SD, standard deviation; WAI, Work Ability Index; BMI, body mass index; ER ratio, effort-reward ratio; ERI, effort-reward imbalance.